.root {
    padding: 10px;
    width: 400px;
    background-color: orange;
    box-sizing: border-box;
}

.child {
    padding: 10px;
    width: 100%;
    background-color: skyblue;
    box-sizing: border-box;
}

.grid {
    padding: 10px;
    width: 100%;
    background-color: #ddd;
    box-sizing: border-box;
}
.grid2{
    padding: 10px;
    width: 100%;
    background-color: #4336f8;
    box-sizing: border-box;
    color: white;
}